Piano lid height adjuster block



FIG. 1 is a front, top and left-side perspective view of a piano lid height adjuster block showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left-side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom view thereof; and

FIG. 6 is a plan view thereof. 

The ornamental design for a piano lid height adjuster block, substantially as shown and described. 